On the wreckage of the left wing, which is nearly seven meters long, from the wing tip to the root, it is initially half a meter long, messy white scratches, followed by a gap about three meters long. On both sides of this huge gap, along the cracked metal section, like a spider web, the black cracks extend outwards densely, like cracked wrinkles on the ground.

If an airplane falls into the sea, it will inevitably cause fracture and damage to the fuselage.

At first glance, these injuries were very normal, but after Zhuo Huan's reminder, everyone realized that something was wrong.

Old Joseph has years of experience in air crash investigation. He tasted something wrong and touched his chin and said, "Reid, what do you mean is that this crack is wrong? The plane crashed into the sea for a moment. Even if the plane barely kept flying on the sea for a few seconds, from the moment it fell into the sea, it was destined to be destroyed by the powerful ocean power of the sea. This was a crash on the sea surface, not an emergency landing on the river surface, and it was impossible for the Hudson miracle to occur."

The sea is not a river.

In 2009, a US Airlines flight 1549 was hit by a bird strike shortly after taking off from LaGuardia Airport in New York, and all four engines failed. The plane had to make a landing immediately, and the captain chose to make a landing on the Hudson River. This landing was very successful, with no victims, only a few injured.

This forced landing is called the Hudson Miracle.

But if this happened on the sea, the Hudson miracle would not have happened at all.

During the movement of seawater, it will generate extremely large tidal energy, wave energy, ocean current energy, etc.

The plane landed on a stable water surface, and it was no different from landing on a concrete ground. Not to mention landing on a turbulent ocean. The powerful ocean power will surely tear the plane apart, without exception.

Old Joseph: "As for the fracture surface, I can't see anything wrong with the naked eye. It is the wing tip into water. The more you go back, the bigger the crack, which is very consistent with common sense. At the same time, the cracks on both sides of the crack will also expand. These are in line with the fracture toughness of the metal. Do you think there is something wrong?"

However, Old Joseph did not expect that after he asked this question, Zhuo Huan did not give the answer immediately.

Fucheng and Old Joseph both looked at him, but Zhuo Huan frowned slightly. His eyes looked at the fracture of the left wing for a long time, and finally looked up: "I can't be sure, but this crack is full of some strangeness in my intuition."

Fucheng: "What kind of strange feeling?"

"Is it supposed to be like this?"

Fu Cheng looked at him: "Teacher Zhuo?"

Zhuo Huan: "Let's calculate first."

***

Investigation headquarters, conference room.

Su Fei: "Is it a human?"

Fucheng: "..."

The punk boy turned his head dissatisfiedly and said, "Brother Fu, you should now say 'It doesn't look like it'."

Fucheng: "..."

After a moment, he looked blank: "It doesn't look like it."

Su Fei nodded and sighed: "I'm afraid this is not a beast in human skin."

Zhuo Huan's tall back paused slightly, and after a cold snorted contempt, he said without raising his head: "Retreat the room for him and replace it with a standard room."

Although she didn't name her, Lina knew that this must be what she said. She smiled slightly and said, "Okay." As she said that, she picked up her cell phone and prepared to check out.

Su Fei ran over in horror, held her hand that she wanted to call, turned her head and said angrily to Zhuo Huan: "Everyone lives in a suite, why should I live in a standard room? It's not that you pay for it, it's NTSB to pay for it!"

After hearing this, Mr. Zhuo did not lower his head to write the formula and calculate it. He raised his head and leaned back on the back of the chair, leaving Su Fei with an arrogant chin - not a double chin.

"Just because I am the head of UAAG." Then I looked at Lina, "Create a little hotel on the street."

Su Fei: "Is it better to give someone a way out!"

Zhuo Huan: "Swish."

This is probably the case with the so-called humble mouth.

Su Fei burst into tears, regretting not being mean to the face of Mr. Zhuo. He kept acting coquettishly at Lina, begging Lina not to withdraw his suite: "It's more than 10,000 yuan a night! I haven't stayed enough yet! I'm so tired every day that I'll point and lie in my comfortable jacuzzi tub when I go back, and have a happy spa so that I can survive like this."

Lina smiled gently and said, "Why have to say in front of Reid, silly kid, you are behind him, you can say whatever you want."

Mr. Zhuo: “…”

"snort."

In fact, Su Fei cannot be completely blamed for being mean.

Fucheng quietly looked at a man and the things in front of him.

I saw countless A4 papers placed on a wide conference table. Each paper was made of black water pens, with complex formulas and calculation processes written. It was not complicated to measure the fracture data of the left wing of the aircraft and various physical properties. But it was difficult to find the strangeness from it.

First of all, they don’t know what is wrong with the crack on the left wing of the aircraft. Then they must consider it from every aspect.

Could it be that there is metal fatigue that is already there?

Before the plane fell into the water, the left wing broke, but because it fell into the sea later, the original fracture was covered by a new fracture?

Will the left wing of the plane be cut by something?

For example, when Fucheng flew from New York to Boston half a year ago, the wings of the plane were cut by engine fragments.

There are many, many unpredictable possibilities.

So in order to find out the strangeness, Zhuo Huan began to calculate in detail. From the morning, he sat at the table and now calculated for four hours. Various physical formulas and mathematical announcements slipped out smoothly from the pen without a trace of sluggishness.

Just like directing a grand and elegant symphony, every time he raised his hand, he stripped the symbols from the piano score and put them on the paper with an unstoppable cold attitude. In this way, he gathered into a magnificent theoretical symphony.

No wonder this man was able to attend the World Physics Conference.

This thought suddenly flashed through my mind. Before Fucheng could come back to his senses, he heard Zhuo Huan say, "Pour me a cup of coffee."

He woke up instantly, Fucheng looked around. At some point, Lina had left the conference room, and Su Fei of course followed her and begged her not to change the room for herself.

As if it were natural, the young black-haired man stood up, walked to the tea room, poured a cup of coffee, and handed it to Zhuo Huan.

"Thank you." He raised his head slightly, and his eyes paused on his hand holding the coffee cup. Seeing that this was not Lina, Zhuo Huan raised his head and looked at Fucheng. His eyes were facing each other. After a long time, Zhuo Huan raised his eyebrows and said, "Don't you leave?"

Fucheng pulled a chair and sat down: "It's just a bit of information. Will it bother you, Teacher Zhuo?"

I looked at the young man in front of me with a steady look, and my eyes stayed on those beautiful eyebrows for a moment.

Zhuo Huan smiled: "No."

Although he has always been focused when working, he will never be disturbed by external forces.

But having a good-looking person stays by your side is not a bad thing. At least it can purify the air and be pleasing to the eye.

This time I sat for a whole day.

Fucheng rubbed his sore shoulders, raised his head, and found that Zhuo Huan was still calculating the data on the left wing of the plane.

He picked up a piece of waste paper that was kneaded into a ball by Zhuo Huan and threw it into the trash can, and opened it and looked at it.

“…Griffith’s energy relationship?”

"You know?"

Fu Cheng looked up: "Well, I have seen it somewhere before. I must have seen it when I was in theory class before."

Driving an airplane is not driving. Pilots not only need to learn how to fly an airplane, but also need to learn a variety of theoretical knowledge. From the most basic aerodynamics, electronic and electrical principles, to ergonomics, meteorology, etc., everything is available.

Of course, the fracture mechanics of metals are definitely not included.

Which pilot will go to learn what to do if the plane is broken if it is broken? When encountering this situation, it is more practical to learn how to skydiving first.

Zhuo Huan lowered his head to calculate and said lightly: "That was calculated assuming that the plane had metal fatigue, but the answer was wrong. Its left wing did not break in a static state, it was not brittle fracture, it was plastic deformation."

Fucheng smiled slightly.

...Pretend to understand.

Fucheng: "Teacher Zhuo, are there any clues?"

Zhuo Huan: "What do you think?"

Fucheng: "Do you still want coffee?"

"Um."

He went to pour another cup of coffee. When Fucheng returned to the conference room, he saw Zhuo Huan standing up. He held a piece of draft paper, stood under the bright incandescent lamp, raised his hand, and looked at the contents on the paper through the light.

The bright light shone the white paper through the thin paper and shone on the man's cold and elegant face. Zhuo Huan narrowed his eyes slightly, his thin lips twitched, and he let out a low sigh.

At this time, he turned around and saw Fucheng standing next to the door.

Like the spring breeze blowing across the chilly ice field, the confident and proud light gathered into the starlight in his eyes. He raised his chin towards Fucheng, waved the draft paper in his hand, and the paper made a crisp sound in the air.

"Oh, found it."

Fu Cheng looked at the man in front of him, his lips opened, but he didn't say a sound.

After a moment.

Fucheng: "Congratulations."

***

Hearing that the investigation had made new progress, Lovens immediately went upstairs and came to the conference room.

As soon as he entered the room, he looked at Zhuo Huan anxiously: "Patrick, have you found any new clues?"

Zhuo Huan looked up at him: "Don't worry, sit down."

Lovens hurriedly pulled a chair.

Lina has input all the data calculated by Zhuo Huan into the computer and projected it onto the screen.
To be continued...